This register appears in "Intel Ethernet Connection C827-AM/C827-IM/XL827-AM" datasheet revision 1.1. We apply the E823-L for SFP configuration using two Intel binaries into which we have no insight: icxd_lcc_cei_4x10g_pkvl_sfp_vmc_id_eeprom_rev2p3.bin C827_XL827_A1_...